Atoms
The number you use to find the number of protons in the nucleus.
What is the atomic number?
3 main states of matter
What are Solid, liquid, and Gas?
Ca
What is the element symbol for Calcium?
The group of elements that can conduct heat and electricty
What are metals?
The coefficient in chemical formula, 2 HCl, tells a scientist...
What is the number of molecules in a chemical formula?
Subatomic particle that is in the outside of the nucleus of an atom
What is The electron ?
Ar
What is the element symbol for Argon?
Chemical symbol for oxygen
O
The name of the family of elements that are nonmetal and very reactive
What are the halogens?
Elements that are the most abundant on the periodic table.
What is a Metal?
Subatomic particles are in the nucleus
What are Protons and Neutrons?
C₆H₁₂O₆
What is a chemical formula?
Na
What is the chemical symbol for Sodium
The elements are organized on the periodic table by ....
What is atomic mass (or atomic numbers)?
The number of atoms of each element in a chemical formula?
What is a subscript?
The subatomic particle that gives the element its identity
What is a proton?
the atomic number of Nitrogen
What is 7 ?
He
What is the Chemical Symbol for Helium
Alkali metals
What are the elements in Group 1 called ?
Name all 3 subatomic particles.
What are Protons, Neutrons, and Electrons
The number of electrons in a neutral atom of Neon
What is 10?
The amount of mass in a given volume: Mass divided by volume
What is density?
The chemical symbol for sodium Chloride
What is NaCl?
Noble Gases
What are the last group of elements on the periodic table called (group 8 or 18)?
The sum of protons and neutrons in the nucleus of an atom is known as the _________
What is the mass number?
8 electrons
What is the number of electrons needed in the outer shell of a stable atom?
The number of protons in the atom Beryllium
What is 4?
The elements in Group 1 of the periodic table
What are highly reactive elements or alkali metals?
Lithium, sodium, potassium, rubidium, caesium and francium belong to the family of ______________
What is Alkali metal.
The subatomic particle that has a negative charge
What is an electron?
A reaction or property when a substance remains the same
What is a physical reaction or property?
Elements on the left side of the periodic table
What are metals?
A type of element with properties between metals and non-metals
What are metalloids?
The subatomic particle that is neutral and helps to stabilize the nucleus
What is a neutron?
Elements that are joined together by chemical bonds
What are compounds?
Three main groups of elements are on the periodic table
What are metals, nonmetals, and metalloids?
The substances mixed to produce a chemical reaction are called
What are reactants?